The only problem I see, is that it only makes surface tunnels.
lorenww wrote:
The only problem I see, is that it only makes surface tunnels.
That seems like a contradiction in terms, doesn't it. It's the old cut and cover technique.
Very interesting Jerry. I particularly like the part about 4 minutes in where the guy on the right points with his hand and says "why don't you drive it up to around here and see what happens" ... the confidence in the construction technique just oozes out of it! :)
In all seriousness, as a traffic engineer, this would make for some really quick construction ... interchanges, etc. ... if only the traffic would be able to drive through it at more than maybe 1 km/h (sorry, 0.62 mph :) ) Sorry, back to being serious: would be great for things like pedestrian/cycling tunnels but you would have to run power through it for lighting, and put a floor in it.
Tunnels for things like subways have virtually never been deeper than necessary including the depth needed for a strong enough roof.
bgl
Loc: Brooklyn,New York
Sure hope that this is something that Hamas cannot use!
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